The current MC is under $120M for a company that, at $8500 per ton sells, $2k per ton costs and 50 ton per year would generate earnings of $325M per year. All these numbers are reasonable IMO and could be higher. The current NPV at 10% is still around $2B

Thanks for the update but I am not sure I follow your math. At $2B NPV using 10% that is a insitu value of $20B. I can't make it to that number (yet).